html.image-datamosh-root { color-scheme: light; }

body.image-datamosh-body {
  --idm-background: #f4f6f8;
  --idm-surface: #ffffff;
  --idm-subtle: #f6f8fa;
  --idm-border: #d0d7de;
  --idm-text: #1f2328;
  --idm-muted: #57606a;
  --idm-accent: #0969da;
  --idm-accent-hover: #0757b5;
  --idm-on-accent: #ffffff;
  --idm-danger: #cf222e;
  --idm-success: #1a7f37;
  --idm-warning: #9a6700;
  --idm-focus-ring: rgba(9, 105, 218, 0.25);
  --idm-notice: #ddf4ff;
  --idm-notice-border: #b6e3ff;
  --idm-notice-text: #0550ae;
  --idm-preview: #111820;
  --idm-preview-header: #161b22;
  --idm-preview-divider: #3d444d;
  --idm-preview-text: #f0f6fc;
  --idm-drop-border: #8c959f;
  --idm-canvas-background: #1f242b;
  --idm-canvas-checker: #2d333b;
  --idm-radius: 12px;
  --idm-card-radius: 10px;
  --idm-control-radius: 8px;
  --idm-control-height: 38px;
  --idm-control-gap: 10px;
  --idm-gap: 14px;
  --idm-panel-padding: 18px;
  --idm-disabled-opacity: 0.52;
  --idm-field-disabled-opacity: 0.55;
  --idm-code-font: "Cascadia Code", Consolas, monospace;
  --idm-shadow: 0 14px 36px rgba(31, 35, 40, 0.08);
  min-height: 100vh;
  margin: 0;
  color: var(--idm-text);
  background: var(--idm-background);
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
}

/* Page shell and navigation */
.image-datamosh-page,
.image-datamosh-page * { box-sizing: border-box; }

main.image-datamosh-page { width: min(1220px, calc(100% - 32px)); margin-inline: auto; padding-block: 38px; }
.image-datamosh-page-header { margin-bottom: 18px; }
.image-datamosh-page-header h1 { margin: 0; font-size: clamp(1.7rem, 3vw, 2.2rem); }
.image-datamosh-page-header > p { margin: 8px 0 0; color: var(--idm-muted); line-height: 1.7; }
.image-datamosh-page .breadcrumb { display: flex; align-items: center; gap: 8px; margin-bottom: 12px; color: var(--idm-muted); font-size: 0.9rem; }
.image-datamosh-page a { color: var(--idm-accent); font-weight: 700; text-decoration: none; }
.image-datamosh-page a:hover,
.image-datamosh-page a:focus-visible { text-decoration: underline; }

/* Panels and shared surfaces */
.image-datamosh-notice,
.image-datamosh-panel,
.image-datamosh-about { margin-bottom: 16px; border: 1px solid var(--idm-border); border-radius: var(--idm-radius); background: var(--idm-surface); box-shadow: var(--idm-shadow); }
.image-datamosh-notice { padding: 12px 14px; color: var(--idm-notice-text); border-color: var(--idm-notice-border); background: var(--idm-notice); line-height: 1.65; }
.image-datamosh-panel,
.image-datamosh-about { padding: var(--idm-panel-padding); }
.image-datamosh-panel h2,
.image-datamosh-about h2 { margin: 0; }
.image-datamosh-panel h2 { font-size: 1.1rem; }
.image-datamosh-panel-description { margin: 6px 0 0; color: var(--idm-muted); }

/* Toolbars and form controls */
.image-datamosh-toolbar,
.image-datamosh-actions,
.image-datamosh-inline-control,
.image-datamosh-progress-row { display: flex; align-items: center; flex-wrap: wrap; gap: var(--idm-control-gap); }
.image-datamosh-toolbar { justify-content: space-between; }

.image-datamosh-page :is(button, select, input[type="text"], input[type="color"]) { min-height: var(--idm-control-height); color: var(--idm-text); border: 1px solid var(--idm-border); border-radius: var(--idm-control-radius); background: var(--idm-surface); font: inherit; }
.image-datamosh-page :is(button, select) { padding: 7px 12px; }
.image-datamosh-page input[type="text"] { width: 100%; padding: 7px 9px; }
.image-datamosh-page input[type="color"] { width: 100%; padding: 4px; }
.image-datamosh-page button { background: var(--idm-subtle); font-weight: 700; cursor: pointer; }
.image-datamosh-page .image-datamosh-button-primary,
.image-datamosh-page .image-datamosh-download { color: var(--idm-on-accent); border: 1px solid var(--idm-accent); background: var(--idm-accent); }
.image-datamosh-page .image-datamosh-button-primary:hover,
.image-datamosh-page .image-datamosh-download:hover { color: var(--idm-on-accent); background: var(--idm-accent-hover); text-decoration: none; }
.image-datamosh-page .image-datamosh-button-danger { color: var(--idm-danger); }

/* Source image selection and metadata */
.image-datamosh-drop-zone { display: grid; place-items: center; min-height: 180px; margin-top: var(--idm-gap); padding: 28px; color: var(--idm-muted); border: 2px dashed var(--idm-drop-border); border-radius: var(--idm-card-radius); background: var(--idm-subtle); text-align: center; cursor: pointer; }
.image-datamosh-drop-zone > * { display: block; }
.image-datamosh-drop-zone strong { margin-bottom: 7px; color: var(--idm-text); font-size: 1.05rem; }
.image-datamosh-drop-zone small { margin-top: 8px; }
.image-datamosh-drop-zone.is-dragover { color: var(--idm-accent); border-color: var(--idm-accent); background: var(--idm-notice); }

.image-datamosh-selected-file,
.image-datamosh-range-field,
.image-datamosh-preview-card,
.image-datamosh-result-details { border: 1px solid var(--idm-border); }
.image-datamosh-selected-file,
.image-datamosh-range-field,
.image-datamosh-preview-card,
.image-datamosh-empty-result,
.image-datamosh-result-preview,
.image-datamosh-result-details { border-radius: var(--idm-card-radius); }
.image-datamosh-selected-file,
.image-datamosh-range-field,
.image-datamosh-empty-result,
.image-datamosh-result-details { background: var(--idm-subtle); }
.image-datamosh-selected-file { margin-top: var(--idm-gap); padding: var(--idm-gap); }
.image-datamosh-file-name { margin: 0 0 12px; font-weight: 800; overflow-wrap: anywhere; }
.image-datamosh-file-info,
.image-datamosh-settings-grid,
.image-datamosh-output-settings,
.image-datamosh-preview-grid,
.image-datamosh-about-grid { display: grid; grid-template-columns: repeat(var(--idm-grid-columns), minmax(0, 1fr)); }
.image-datamosh-file-info { --idm-grid-columns: 3; gap: var(--idm-control-gap); margin: 0; }
.image-datamosh-file-info div { min-width: 0; padding: 10px; border: 1px solid var(--idm-border); border-radius: var(--idm-control-radius); background: var(--idm-surface); }
.image-datamosh-file-info dt { color: var(--idm-muted); font-size: 0.8rem; }
.image-datamosh-file-info dd { margin: 5px 0 0; overflow-wrap: anywhere; font-weight: 700; }

/* Effect and output settings */
.image-datamosh-settings-grid,
.image-datamosh-output-settings { --idm-grid-columns: 4; gap: var(--idm-gap); margin-top: var(--idm-gap); }
.image-datamosh-field,
.image-datamosh-range-field,
.image-datamosh-checkbox { color: var(--idm-muted); font-weight: 700; }
.image-datamosh-field,
.image-datamosh-range-field { display: grid; align-content: start; gap: 7px; }
.image-datamosh-field select { width: 100%; }
.image-datamosh-inline-control { flex-wrap: nowrap; }
.image-datamosh-inline-control input { min-width: 0; flex: 1; }
.image-datamosh-range-field { grid-template-columns: 1fr auto; padding: 12px; }
.image-datamosh-range-field input { grid-column: 1 / -1; width: 100%; }
.image-datamosh-range-field output { color: var(--idm-text); font-family: var(--idm-code-font); }
.image-datamosh-checkbox { display: flex; align-self: end; align-items: center; gap: 8px; min-height: var(--idm-control-height); }
.image-datamosh-checkbox input { width: 17px; height: 17px; }
.image-datamosh-range-field input,
.image-datamosh-checkbox input { accent-color: var(--idm-accent); }
.image-datamosh-field.is-disabled { opacity: var(--idm-field-disabled-opacity); }

/* Source and processed previews */
.image-datamosh-preview-grid { --idm-grid-columns: 2; gap: var(--idm-gap); margin-top: var(--idm-gap); }
.image-datamosh-preview-card { min-width: 0; margin: 0; overflow: hidden; background: var(--idm-preview); }
.image-datamosh-preview-card figcaption { padding: 9px 12px; color: var(--idm-preview-text); border-bottom: 1px solid var(--idm-preview-divider); background: var(--idm-preview-header); font-weight: 700; }
.image-datamosh-canvas-stage { display: grid; place-items: center; min-height: 280px; padding: 12px; background-color: var(--idm-canvas-background); background-image: linear-gradient(45deg, var(--idm-canvas-checker) 25%, transparent 25%), linear-gradient(-45deg, var(--idm-canvas-checker) 25%, transparent 25%), linear-gradient(45deg, transparent 75%, var(--idm-canvas-checker) 75%), linear-gradient(-45deg, transparent 75%, var(--idm-canvas-checker) 75%); background-position: 0 0, 0 8px, 8px -8px, -8px 0; background-size: 16px 16px; }
.image-datamosh-canvas-stage canvas { display: block; width: auto; height: auto; max-width: 100%; max-height: 560px; }
.image-datamosh-preview-help { margin: var(--idm-control-gap) 0 0; color: var(--idm-muted); font-size: 0.86rem; }

/* Progress and status messaging */
.image-datamosh-progress-row { flex-wrap: nowrap; margin-top: var(--idm-gap); }
.image-datamosh-progress-row progress { width: 100%; height: 14px; accent-color: var(--idm-accent); }
.image-datamosh-progress-row output { min-width: 3.2em; text-align: end; font-weight: 700; }
.image-datamosh-message { min-height: 44px; margin: var(--idm-control-gap) 0 0; padding: 11px 14px; color: var(--idm-message-color, var(--idm-muted)); border-radius: var(--idm-control-radius); background: var(--idm-subtle); line-height: 1.5; }
.image-datamosh-message[data-status="success"] { --idm-message-color: var(--idm-success); }
.image-datamosh-message[data-status="warning"] { --idm-message-color: var(--idm-warning); }
.image-datamosh-message[data-status="error"] { --idm-message-color: var(--idm-danger); }

/* Generated result */
.image-datamosh-empty-result { display: grid; place-items: center; min-height: 170px; margin-top: var(--idm-gap); color: var(--idm-muted); border: 1px dashed var(--idm-border); }
.image-datamosh-result { display: grid; grid-template-columns: minmax(300px, 1.4fr) minmax(260px, 1fr); gap: var(--idm-gap); margin-top: var(--idm-gap); }
.image-datamosh-result-preview { display: grid; place-items: center; min-height: 260px; padding: 12px; overflow: hidden; background: var(--idm-preview); }
.image-datamosh-result-preview img { display: block; max-width: 100%; max-height: 620px; object-fit: contain; }
.image-datamosh-result-details { align-self: start; min-width: 0; padding: var(--idm-gap); }
.image-datamosh-result-details h3 { margin: 0; overflow-wrap: anywhere; }
.image-datamosh-result-details p { line-height: 1.6; color: var(--idm-muted); }
.image-datamosh-page .image-datamosh-download { display: inline-flex; align-items: center; justify-content: center; min-height: var(--idm-control-height); padding: 7px 14px; border-radius: var(--idm-control-radius); }

/* Usage guidance */
.image-datamosh-about { line-height: 1.7; }
.image-datamosh-about > p { color: var(--idm-muted); }
.image-datamosh-about-grid { --idm-grid-columns: 2; gap: 28px; }
.image-datamosh-about h3 { margin: 18px 0 6px; font-size: 0.95rem; }
.image-datamosh-about :is(ul, ol) { margin: 6px 0 0; padding-left: 22px; }

/* Shared interaction states */
.image-datamosh-page button:disabled { cursor: not-allowed; opacity: var(--idm-disabled-opacity); }
.image-datamosh-page :is(button, select, input, .image-datamosh-drop-zone, .image-datamosh-download):focus-visible { outline: 3px solid var(--idm-focus-ring); outline-offset: 2px; }
.image-datamosh-page [hidden] { display: none !important; }

/* Responsive layout */
@media (max-width: 900px) {
  .image-datamosh-settings-grid,
  .image-datamosh-output-settings,
  .image-datamosh-file-info { --idm-grid-columns: 2; }
}

@media (max-width: 640px) {
  main.image-datamosh-page { width: min(100% - 20px, 1220px); padding-block: 20px; }
  .image-datamosh-toolbar { align-items: stretch; flex-direction: column; }
  .image-datamosh-actions { width: 100%; }
  .image-datamosh-actions button { flex: 1; }
  .image-datamosh-settings-grid,
  .image-datamosh-output-settings,
  .image-datamosh-preview-grid,
  .image-datamosh-file-info,
  .image-datamosh-about-grid { --idm-grid-columns: 1; }
  .image-datamosh-result { grid-template-columns: minmax(0, 1fr); }
  .image-datamosh-drop-zone { min-height: 150px; padding: 20px; }
}